In Chapter 10, I've learned about circles and angles. I learned that a minor arc is less than 180 degrees, a major arc is more than 180 degrees, and a semicircle is 180 degrees. An inscribed angle is an angle made of two cords connected at a point on the circumference. A central angle is made of two radii connected at the center. Also a line tangent to a circle is perpendicular to the circle, drawn to the point of tangency.
Careers related to this are meteorology, astronomy, and photography.
Why are there lines tangent to the circle? I don't undertand why they"re called tangent.
A circle is intersected by two secant lines, AB and CD, at point E. Arc AD is 57 degrees. Arc AC is 26 degrees. Arc AC = Arc DB. What is the measure of all of the arcs and angles?
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